plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3 #include "listplusplus.h"
   4
   5 extern "C" AbstractSinkManager * create(AbstractRoutingEngine* routingengine, map<string, string> config)
   6 {
   7         return new DatabaseSinkManager(routingengine, config);
   8 }
   9
  10 void * cbFunc(gpointer data)
  11 {
  12         Shared *shared = static_cast<Shared*>(data);
  13
  14         if(!shared)
  15         {
  16                 throw std::runtime_error("Could not cast shared object.");
  17         }
  18
  19         vector<DictionaryList<string> > insertList;
  20
  21         while(1)
  22         {
  23                 DBObject* obj = shared->queue.pop();
  24
  25                 if( obj->quit )
  26                 {
  27                         delete obj;
  28                         break;
  29                 }
  30
  31                 DictionaryList<string> dict;
  32
  33                 NameValuePair<string> one("key", obj->key);
  34                 NameValuePair<string> two("value", obj->value);
  35                 NameValuePair<string> three("source", obj->source);
  36                 NameValuePair<string> four("time", boost::lexical_cast<string>(obj->time));
  37                 NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj->sequence));
  38
  39                 dict.push_back(one);
  40                 dict.push_back(two);
  41                 dict.push_back(three);
  42                 dict.push_back(four);
  43                 dict.push_back(five);
  44
  45                 insertList.push_back(dict);
  46
  47                 if(insertList.size() > 100)
  48                 {
  49                         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  50                         for(int i=0; i< insertList.size(); i++)
  51                         {
  52                                 DictionaryList<string> d = insertList[i];
  53                                 shared->db->insert(d);
  54                         }
  55                         shared->db->exec("END TRANSACTION");
  56                         insertList.clear();
  57                 }
  58                 delete obj;
  59         }
  60
  61         return NULL;
  62 }
  63
  64 int getNextEvent(gpointer data)
  65 {
  66         PlaybackShared* pbshared = static_cast<PlaybackShared*>(data);
  67
  68         if(!pbshared)
  69                 throw std::runtime_error("failed to cast PlaybackShared object");
  70
  71         auto itr = pbshared->playbackQueue.begin();
  72
  73         if(itr == pbshared->playbackQueue.end())
  74         {
  75                 return 0;
  76         }
  77
  78         DBObject* obj = *itr;
  79
  80         AbstractPropertyType* value = VehicleProperty::getPropertyTypeForPropertyNameValue(obj->key,obj->value);
  81
  82         if(value)
  83         {
  84                 pbshared->routingEngine->updateProperty(obj->key, value, pbshared->uuid);
  85                 value->timestamp = obj->time;
  86                 //value->sequence = obj->sequence;
  87         }
  88
  89         if(++itr != pbshared->playbackQueue.end())
  90         {
  91                 DBObject *o2 = *itr;
  92                 double t = o2->time - obj->time;
  93
  94                 if(t > 0)
  95                         g_timeout_add((t*1000) / pbshared->playBackMultiplier, getNextEvent, pbshared);
  96                 else
  97                         g_timeout_add(t, getNextEvent, pbshared);
  98         }
  99
 100         pbshared->playbackQueue.remove(obj);
 101         delete obj;
 102
 103         return 0;
 104 }
 105
 106 DatabaseSink::DatabaseSink(AbstractRoutingEngine *engine, map<std::string, std::string> config)
 107         :AbstractSource(engine,config),thread(NULL),shared(NULL),playback(false),playbackShared(NULL), playbackMultiplier(1)
 108 {
 109         databaseName = "storage";
 110         tablename = "data";
 111         tablecreate = "CREATE TABLE IF NOT EXISTS data (key TEXT, value BLOB, source TEXT, time REAL, sequence REAL)";
 112
 113         if(config.find("databaseFile") != config.end())
 114         {
 115                 databaseName = config["databaseFile"];
 116         }
 117
 118         if(config.find("properties") != config.end())
 119         {
 120                 parseConfig();
 121         }
 122
 123         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
 124         {
 125                 engine->subscribeToProperty(*itr,this);
 126         }
 127
 128         mSupported.push_back(DatabaseFileProperty);
 129         mSupported.push_back(DatabaseLoggingProperty);
 130         mSupported.push_back(DatabasePlaybackProperty);
 131
 132
 133         initDb();
 134
 135         /// get supported:
 136
 137         vector<vector<string> > supportedStr = shared->db->select("SELECT DISTINCT key FROM "+tablename);
 138
 139         for(int i=0; i < supportedStr.size(); i++)
 140         {
 141                 if(!ListPlusPlus<VehicleProperty::Property>(&mSupported).contains(supportedStr[i][0]))
 142                         mSupported.push_back(supportedStr[i][0]);
 143         }
 144
 145         routingEngine->setSupported(supported(), this);
 146
 147         if(config.find("startOnLoad")!= config.end())
 148         {
 149                 startDb();
 150         }
 151
 152         if(config.find("playbackMultiplier")!= config.end())
 153         {
 154                 playbackMultiplier = boost::lexical_cast<uint>(config["playbackMultiplier"]);
 155         }
 156
 157         if(config.find("playbackOnLoad")!= config.end())
 158         {
 159                 startPlayback();
 160         }
 161
 162
 163 }
 164
 165 DatabaseSink::~DatabaseSink()
 166 {
 167         if(shared)
 168         {
 169                 DBObject* obj = new DBObject();
 170                 obj->quit = true;
 171
 172                 shared->queue.append(obj);
 173
 174                 g_thread_join(thread);
 175                 g_thread_unref(thread);
 176                 delete shared;
 177         }
 178
 179         if(playbackShared)
 180         {
 181                 delete playbackShared;
 182         }
 183 }
 184
 185
 186 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
 187 {
 188
 189 }
 190
 191 PropertyList DatabaseSink::supported()
 192 {
 193         return mSupported;
 194 }
 195
 196 void DatabaseSink::parseConfig()
 197 {
 198         json_object *rootobject;
 199         json_tokener *tokener = json_tokener_new();
 200         enum json_tokener_error err;
 201         do
 202         {
 203                 rootobject = json_tokener_parse_ex(tokener, configuration["properties"].c_str(),configuration["properties"].size());
 204         } while ((err = json_tokener_get_error(tokener)) == json_tokener_continue);
 205         if (err != json_tokener_success)
 206         {
 207                 fprintf(stderr, "Error: %s\n", json_tokener_error_desc(err));
 208         }
 209         if (tokener->char_offset < configuration["properties"].size()) // XXX shouldn't access internal fields
 210         {
 211                 //Should handle the extra data here sometime...
 212         }
 213
 214         json_object *propobject = json_object_object_get(rootobject,"properties");
 215
 216         g_assert(json_object_get_type(propobject) == json_type_array);
 217
 218         array_list *proplist = json_object_get_array(propobject);
 219
 220         for(int i=0; i < array_list_length(proplist); i++)
 221         {
 222                 json_object *idxobj = (json_object*)array_list_get_idx(proplist,i);
 223                 std::string prop = json_object_get_string(idxobj);
 224                 propertiesToSubscribeTo.push_back(prop);
 225
 226                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 227         }
 228
 229         json_object_put(propobject);
 230         json_object_put(rootobject);
 231 }
 232
 233 void DatabaseSink::stopDb()
 234 {
 235         if(!shared)
 236                 return;
 237
 238         DBObject *obj = new DBObject();
 239         obj->quit = true;
 240         shared->queue.append(obj);
 241
 242         g_thread_join(thread);
 243
 244         delete shared;
 245         shared = NULL;
 246 }
 247
 248 void DatabaseSink::startDb()
 249 {
 250         if(playback)
 251         {
 252                 DebugOut(0)<<"ERROR: tried to start logging during playback.  Only logging or playback can be used at one time"<<endl;
 253                 return;
 254         }
 255
 256         if(shared)
 257         {
 258                 DebugOut(0)<<"WARNING: logging already started.  doing nothing."<<endl;
 259                 return;
 260         }
 261
 262         initDb();
 263
 264         thread = g_thread_new("dbthread", cbFunc, shared);
 265 }
 266
 267 void DatabaseSink::startPlayback()
 268 {
 269         if(playback)
 270                 return;
 271
 272         playback = true;
 273
 274         initDb();
 275
 276         /// populate playback queue:
 277
 278         vector<vector<string> > results = shared->db->select("SELECT * FROM "+tablename);
 279
 280         if(playbackShared)
 281         {
 282                 delete playbackShared;
 283         }
 284
 285         playbackShared = new PlaybackShared(routingEngine, uuid(), playbackMultiplier);
 286
 287         for(int i=0;i<results.size();i++)
 288         {
 289                 if(results[i].size() < 5)
 290                 {
 291                         throw std::runtime_error("column mismatch in query");
 292                 }
 293
 294                 DBObject* obj = new DBObject();
 295
 296                 obj->key = results[i][0];
 297                 obj->value = results[i][1];
 298                 obj->source = results[i][2];
 299                 obj->time = boost::lexical_cast<double>(results[i][3]);
 300 //              obj->sequence = boost::lexical_cast<int>(results[i][4]);
 301
 302                 playbackShared->playbackQueue.push_back(obj);
 303         }
 304
 305         g_timeout_add(0,getNextEvent,playbackShared);
 306 }
 307
 308 void DatabaseSink::initDb()
 309 {
 310         if(shared) delete shared;
 311
 312         shared = new Shared;
 313         shared->db->init(databaseName, tablename, tablecreate);
 314 }
 315
 316 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 317 {
 318         if(!shared)
 319                 return;
 320
 321         DBObject* obj = new DBObject;
 322         obj->key = property;
 323         obj->value = value->toString();
 324         obj->source = uuid;
 325         obj->time = value->timestamp;
 326         obj->sequence = value->sequence;
 327
 328         shared->queue.append(obj);
 329 }
 330
 331
 332 std::string DatabaseSink::uuid()
 333 {
 334         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 335 }
 336
 337 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 338 {
 339         reply->success = false;
 340
 341         if(reply->property == DatabaseFileProperty)
 342         {
 343                 StringPropertyType temp(databaseName);
 344                 reply->value = &temp;
 345
 346                 reply->success = true;
 347                 reply->completed(reply);
 348
 349                 return;
 350         }
 351         else if(reply->property == DatabaseLoggingProperty)
 352         {
 353                 BasicPropertyType<bool> temp = shared;
 354
 355                 reply->value = &temp;
 356                 reply->success = true;
 357                 reply->completed(reply);
 358
 359                 return;
 360         }
 361
 362         else if(reply->property == DatabasePlaybackProperty)
 363         {
 364                 BasicPropertyType<bool> temp = playback;
 365                 reply->value = &temp;
 366                 reply->success = true;
 367                 reply->completed(reply);
 368
 369                 return;
 370         }
 371
 372         reply->completed(reply);
 373 }
 374
 375 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 376 {
 377         BaseDB * db = new BaseDB();
 378         db->init(databaseName, tablename, tablecreate);
 379
 380         ostringstream query;
 381         query.precision(15);
 382
 383         query<<"SELECT * from "<<tablename<<" WHERE ";
 384
 385         if(reply->timeBegin && reply->timeEnd)
 386         {
 387                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 388         }
 389
 390         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 391         {
 392                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 393         }
 394
 395         std::vector<std::vector<string>> data = db->select(query.str());
 396
 397         std::list<AbstractPropertyType*> cleanup;
 398
 399         for(auto i=0;i<data.size();i++)
 400         {
 401                 if(data[i].size() != 5)
 402                         continue;
 403
 404                 DBObject dbobj;
 405                 dbobj.key = data[i][0];
 406                 dbobj.value = data[i][1];
 407                 dbobj.source = data[i][2];
 408                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 409                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 410
 411                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 412                 if(property)
 413                 {
 414                         property->timestamp = dbobj.time;
 415                         property->sequence = dbobj.sequence;
 416
 417                         reply->values.push_back(property);
 418                         cleanup.push_back(property);
 419                 }
 420         }
 421
 422         reply->success = true;
 423         reply->completed(reply);
 424
 425         delete db;
 426 }
 427
 428 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 429 {
 430         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 431         reply->success = false;
 432
 433         if(request.property == DatabaseLoggingProperty)
 434         {
 435                 if(request.value->value<bool>())
 436                 {
 437                         ///TODO: start or stop logging thread
 438                         startDb();
 439                         reply->success = true;
 440                         BasicPropertyType<bool> temp(true);
 441                         routingEngine->updateProperty(DatabaseLoggingProperty,&temp,uuid());
 442                 }
 443                 else
 444                 {
 445                         stopDb();
 446                         reply->success = true;
 447                         BasicPropertyType<bool> temp(false);
 448                         routingEngine->updateProperty(DatabaseLoggingProperty,&temp,uuid());
 449                 }
 450         }
 451
 452         else if(request.property == DatabaseFileProperty)
 453         {
 454                 std::string fname = request.value->toString();
 455
 456                 databaseName = fname;
 457
 458                 StringPropertyType temp(databaseName);
 459
 460                 routingEngine->updateProperty(DatabaseFileProperty,&temp,uuid());
 461
 462                 reply->success = true;
 463         }
 464         else if( request.property == DatabasePlaybackProperty)
 465         {
 466                 if(request.value->value<bool>())
 467                 {
 468                         startPlayback();
 469
 470                         BasicPropertyType<bool> temp(true);
 471
 472                         routingEngine->updateProperty(DatabasePlaybackProperty,&temp,uuid());
 473                 }
 474                 else
 475                 {
 476                         /// TODO: stop playback
 477
 478                         BasicPropertyType<bool> temp(true);
 479
 480                         routingEngine->updateProperty(DatabasePlaybackProperty,&temp,uuid());
 481                 }
 482
 483                 reply->success = true;
 484         }
 485
 486         return reply;
 487 }
 488
 489 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 490 {
 491
 492 }
 493
 494 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 495 {
 496 }